6) What is the pH of a solution that is 0.50 M HCOOH (Ka = 1.8 x 10-4) and 0.01 M HBr? A) 1.00 B) 2.04 C) 0.30 D) 2.00 E) 1.72
Please show your work
Formic acid (HCOOH) has a Ka=1.8 x 10^-4. What is the pH of a 25.00mL sample of 2.05 M formic acid after 25.00mL of 2.25 M NaOH has been added? (a) 1.00 (b) 1.72 (c) 12.22 (d) 13.00 (e) 13.74 (I know the answer is (d) but I need help understanding how the answer is found, please be as detailed as possible and explain where you got each number from. Thanks!)
Calculate the pH of a solution containing formic acid, 0.50 M HCOOH, and sodium format, 0.35 M NaCOOH (Ka (HCOOH) = 1.8 x 10-4)
A solution of methanoic acid, HCOOH (Ka = 1.8 × 10-4) has pH 2.69. What amount of methanoic acid is dissolved in 2.00 L of this solution? A. 0.030 mol B. 0.050 mol C. 0.040 mol D. 0.060 mol E. 0.020 mol
Calculate the pH of a 0.0140 M aqueous solution of formic acid (HCOOH, Ka = 1.8×10-4). pH =
Which one of the following solutions has the lowest pH? A. a 0.1 M solution of formic acid, HCOOH (Ka = 1.8 x 10-4) B. a 0.1 M solution of ammonium chloride, NH4Cl(s) (Ka (NH4+) = 5.6 x 10-10) C. a 0.01 M solution of acetic acid, CH3COOH (Ka = 1.8 x 10-5) D. a 0.01 M solution of formic acid, HCOOH (Ka = 1.8 x 10-4) E. a 0.1 M solution of acetic acid, CH3COOH (Ka = 1.8 x...
Solid NaOH is added to a solution of 0.50 M acetic acid until the pH of the solution is 4.30. The resulting concentration (M) of sodium acetate in the solution is Ka (CH3COOH) = 1.8 x 10-5 A. 0.020 B. 0.13 C. 0.30 D. 5.0 x 10-5 E. 0.50
a) Calculate the pH of a 0.8M solution of HCOOH (Ka = 1.8 x 10-4) in 0.4M Li+ HCOO-. b) Calculate the pH of a solution of 0.4M NH4Cl and 0.5M NH3 (pKa NH4+ = 9.2). c) Calculate the pH of a titration of 100 mL 1.5M HCl when 75 mL 1.25M NaOH has been added. d) What volume of 1.25M NaOH must be added to 100 mL of 1.5M HCl to reach equivalence?
The venom of biting ants contains formic acid, HCOOH (Ka = 1.8×10–4 at 25 °C). What is the pH of a 0.105 M solution of formic acid?
The pH of a 0.10 M solution of formic acid (HCOOH) is 2.39.What is the Ka of the acid? Show your work and table.
0. A solution of formic acid (HCOOH, Ka 1.8 x 10) has a pH of 2.70. Calculate initial concentration of formic acid in this solution.